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// This may look like C, but it's really -*- C++ -*-
//=============================================================================
/**
* @file Asynch_Invocation.h
*
* $Id$
*
* Encapsulate the logic for remote Asynchronous Invocations.
*
* @author Carlos O'Ryan <coryan@uci.edu>
* @author Alexander Babu Arulanthu <alex@cs.wustl.edu>
* @author Jeff Parsons <parsons@cs.wustl.edu>
*/
//=============================================================================
#ifndef TAO_ASYNCH_INVOCATION_H
#define TAO_ASYNCH_INVOCATION_H
#include "ace/pre.h"
#include "tao/Invocation.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "tao/Asynch_Reply_Dispatcher.h"
#if (TAO_HAS_AMI_CALLBACK == 1) || (TAO_HAS_AMI_POLLER == 1)
#include "tao/MessagingC.h"
#endif /* (TAO_HAS_AMI_CALLBACK == 1) || (TAO_HAS_AMI_POLLER == 1) == 0 */
/**
* @class TAO_GIOP_Asynch_Invocation
*
* @brief Base class for TAO_GIOP_Twoway_Asynch_Invocation and
* TAO_GIOP_DII_Deferred_Invocation.
*/
class TAO_Export TAO_GIOP_Asynch_Invocation
: public TAO_GIOP_Invocation
{
public:
/// Default constructor. This should never get called, it is here
/// only to appease older versions of g++.
TAO_GIOP_Asynch_Invocation (void);
/// Constructor.
TAO_GIOP_Asynch_Invocation (TAO_Stub *stub,
const char *operation,
CORBA::ULong opname_len,
CORBA::Boolean argument_flag,
TAO_ORB_Core *orb_core,
int byte_order = TAO_ENCAP_BYTE_ORDER);
/// Send request, without blocking until any reply comes back.
virtual int invoke (CORBA_Environment &TAO_IN_ENV =
TAO_default_environment ())
ACE_THROW_SPEC ((CORBA::SystemException));
/// Establishes a connection to the remote server, initializes
/// headers etc.
void start (CORBA_Environment &TAO_IN_ENV =
TAO_default_environment ())
ACE_THROW_SPEC ((CORBA::SystemException));
protected:
/// Must be overridden.
virtual int invoke_i (CORBA::Environment &ACE_TRY_ENV)
ACE_THROW_SPEC ((CORBA::SystemException)) = 0;
/// Reply dispatcher for the current asynchronous invocation.
TAO_Asynch_Reply_Dispatcher_Base *rd_;
};
#if (TAO_HAS_AMI_CALLBACK == 1) || (TAO_HAS_AMI_POLLER == 1)
/**
* @class TAO_GIOP_Twoway_Asynch_Invocation
*
* @brief Sends a two-way request does not expect the reply. This
* class connects (or lookups a connection from the cache) to
* the remote server, builds the CDR stream for the Request,
* send the CDR stream and returns.
*/
class TAO_Export TAO_GIOP_Twoway_Asynch_Invocation
: public TAO_GIOP_Asynch_Invocation
{
public:
/// Constructor.
TAO_GIOP_Twoway_Asynch_Invocation (
TAO_Stub *stub,
const char *operation,
CORBA::ULong opname_len_,
CORBA::Boolean argument_flag,
TAO_ORB_Core* orb_core,
const TAO_Reply_Handler_Skeleton &reply_handler_skel,
Messaging::ReplyHandler_ptr reply_handler_ptr
);
protected:
/// Implementation of the invoke() methods, handles the basic
/// send/reply code and the system exceptions.
virtual int invoke_i (CORBA::Environment &ACE_TRY_ENV)
ACE_THROW_SPEC ((CORBA::SystemException));
};
#endif /* (TAO_HAS_AMI_CALLBACK == 1) || (TAO_HAS_AMI_POLLER == 1) == 0 */
#if defined (__ACE_INLINE__)
# include "tao/Asynch_Invocation.i"
#endif /* __ACE_INLINE__ */
#include "ace/post.h"
#endif /* TAO_ASYNCH_INVOCATION_H */
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